Sunday Porsche Blogging: Type Numbers Part 4, Type 500 through Type 528

Type 502
1950-51
1.5 liter engine for the Type 356

Type 506
1950-51
1.3 liter engine for the Type 356

Type 506/2
1954-55
Type 506 with three-piece crankcase

Type 508
1950
4-stroke diesel engine for Volkswagen

Type 509
1950
1.3 liter engine for Type 356

Type 514
1951
Le Mans cars for 1951 (Type 356 SL)

Type 519
1951-52
Synchronized Transmission for Type 356

Type 522
1951
Volkswagen design proposal with strut-type front suspension

Type 523
1951
Studies of marine engines

Type 524
1951
Fuel injection for Type 369 engine

Type 527
1951-52
1.5 liter production engine for the Type 356, initially made for Le Mans

Type 528
1952-53
1.5 liter sports engine for Type 356 1500S or Super

Type 528/2
1954-55
Type 528 with four-piece crankcase


Source: Porsche Excellence Was Expected - The Complete Story of the Sports and Racing CarsKarl Ludvigsen1st Edition, 1977 pg. 517-5182nd Edition, 2003 pg. 1484The Ludvigsen work is an ongoing labor of love and a must read for any serious student of Porsche history.

Previous parts of the Type Number Series are Type 7 through 114, Type 115 through 356 and Type 356 through 500.